Journal
APPLIED ERGONOMICS
Volume 38, Issue 5, Pages 675-680Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apergo.2006.10.001
Keywords
acoustic comfort in classroom; reverberation time; background noise; sound insulation; acoustic simulation; subjective evaluation
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The acoustic comfort of classrooms in a Brazilian public school has been evaluated through interviews with 62 teachers and 464 pupils, measurements of background noise, reverberation time, and sound insulation. Acoustic measurements have revealed the poor acoustic quality of the classrooms. Results have shown that teachers and pupils consider the noise generated and the voice of the teacher in neighboring classrooms as the main sources of annoyance inside the classroom. Acoustic simulations resulted in the suggestion of placement of perforated plywood on the ceiling, for reduction in reverberation time and increase in the acoustic comfort of the classrooms.(c) 2006 Elsevier Ltd. All rights reserved.
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